Home / 875,964.64-1,208,740.56-646,643.68

Finding the Fourth Proportional to 875,964.64, 1,208,740.56 and 646,643.68

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Solution

The fourth proportional to 875,964.64, 1,208,740.56 and 646,643.68 is: 892,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,964.64 : 1,208,740.56 = 646,643.68 : x
  2. Step 2: Convert to fraction form
    875,964.64/1,208,740.56 = 646,643.68/x
  3. Step 3: Cross multiply
    875,964.64x = 1,208,740.56 × 646,643.68
  4. Step 4: Simplify right side
    875,964.64x = 781,624,443,883.66
  5. Step 5: Solve for x
    x = 781,624,443,883.66/875,964.64
  6. Step 6: Final answer
    x = 892,301.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.